Review on 🔧 ELEGOO UNO R3 Board ATmega328P USB Cable (Arduino-Compatible) Arduino by Ryan Calabro

I used one of these in my very dusty industrial wood shop for a year and a half. I had it in a sealed plastic box with no fan. Works flawlessly. So he deserves 5 stars. However, you have to get a shield with screws to make it work reliably. Soldering or just sticking wires into contacts just won't work in a serious application. Also, I found that in order to download the new version of the program, I had to disable all other shields. I use relay screen. I can't imagine why this would prevent the program from loading, but if you have such a problem, try detaching the screens and loading them again. Feel free to design, friends!